// Emacs style mode select	 -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
// $Log:$
//
// DESCRIPTION:
//		The status bar widget code.
//
//-----------------------------------------------------------------------------


static const char
rcsid[] = "$Id: st_lib.c,v 1.4 1997/02/03 16:47:56 b1 Exp $";

#include <ctype.h>

#include "doomdef.h"

#include "z_zone.h"
#include "v_video.h"

#include "m_swap.h"

#include "i_system.h"

#include "w_wad.h"

#include "st_stuff.h"
#include "st_lib.h"
#include "r_local.h"


// in AM_map.c
extern boolean			automapactive;




//
// Hack display negative frags.
//	Loads and store the stminus lump.
//
patch_t*				sttminus;

void STlib_init(void)
{
    sttminus = (patch_t *) W_CacheLumpName("STTMINUS", PU_STATIC);
}


// ?
void
STlib_initNum
( st_number_t*			n,
  int					x,
  int					y,
  patch_t**				pl,
  int*					num,
  boolean*				on,
  int					width )
{
    n->x		= x;
    n->y		= y;
    n->oldnum	= 0;
    n->width	= width;
    n->num		= num;
    n->on		= on;
    n->p		= pl;
}


//
// A fairly efficient way to draw a number
//	based on differences from the old number.
// Note: worth the trouble?
//
void
STlib_drawNum
( st_number_t*	n,
  boolean		refresh )
{

    int			numdigits = n->width;
    int			num = *n->num;

    int			w = SHORT(n->p[0]->width);
    int			h = SHORT(n->p[0]->height);
    int			x = n->x;

    int			neg;

    n->oldnum = *n->num;

    neg = num < 0;

    if (neg)
    {
        if (numdigits == 2 && num < -9)
            num = -9;
        else if (numdigits == 3 && num < -99)
            num = -99;

        num = -num;
    }

    // clear the area
    x = n->x - numdigits*w;

    if (n->y - ST_Y < 0)
        I_Error("drawNum: n->y - ST_Y < 0");

    V_CopyRect(x, n->y - ST_Y, BG, w*numdigits, h, x, n->y, FG);

    // if non-number, do not draw it
    if (num == 1994)
        return;

    x = n->x;

    // in the special case of 0, you draw 0
    if (!num)
        V_DrawPatch(x - w, n->y, FG, n->p[ 0 ]);

    // draw the new number
    while (num && numdigits--)
    {
        x -= w;
        V_DrawPatch(x, n->y, FG, n->p[ num % 10 ]);
        num /= 10;
    }

    // draw a minus sign if necessary
    if (neg)
        V_DrawPatch(x - 8, n->y, FG, sttminus);
}


//
void
STlib_updateNum
( st_number_t*			n,
  boolean				refresh )
{
    if (*n->on) STlib_drawNum(n, refresh);
}


//
void
STlib_initPercent
( st_percent_t*			p,
  int					x,
  int					y,
  patch_t**				pl,
  int*					num,
  boolean*				on,
  patch_t*				percent )
{
    STlib_initNum(&p->n, x, y, pl, num, on, 3);
    p->p = percent;
}




void
STlib_updatePercent
( st_percent_t*			per,
  int					refresh )
{
    if (refresh && *per->n.on)
        V_DrawPatch(per->n.x, per->n.y, FG, per->p);

    STlib_updateNum(&per->n, refresh);
}



void
STlib_initMultIcon
( st_multicon_t*		i,
  int					x,
  int					y,
  patch_t**				il,
  int*					inum,
  boolean*				on )
{
    i->x		= x;
    i->y		= y;
    i->oldinum	= -1;
    i->inum		= inum;
    i->on		= on;
    i->p		= il;
}



void
STlib_updateMultIcon
( st_multicon_t*		mi,
  boolean				refresh )
{
    int					w;
    int					h;
    int					x;
    int					y;

    if (*mi->on
            && (mi->oldinum != *mi->inum || refresh)
            && (*mi->inum!=-1))
    {
        if (mi->oldinum != -1)
        {
            x = mi->x - SHORT(mi->p[mi->oldinum]->leftoffset);
            y = mi->y - SHORT(mi->p[mi->oldinum]->topoffset);
            w = SHORT(mi->p[mi->oldinum]->width);
            h = SHORT(mi->p[mi->oldinum]->height);

            if (y - ST_Y < 0)
                I_Error("updateMultIcon: y - ST_Y < 0");

            V_CopyRect(x, y-ST_Y, BG, w, h, x, y, FG);
        }
        V_DrawPatch(mi->x, mi->y, FG, mi->p[*mi->inum]);
        mi->oldinum = *mi->inum;
    }
}



void
STlib_initBinIcon
( st_binicon_t*			b,
  int					x,
  int					y,
  patch_t*				i,
  boolean*				val,
  boolean*				on )
{
    b->x		= x;
    b->y		= y;
    b->oldval	= 0;
    b->val		= val;
    b->on		= on;
    b->p		= i;
}



void
STlib_updateBinIcon
( st_binicon_t*			bi,
  boolean				refresh )
{
    int					x;
    int					y;
    int					w;
    int					h;

    if (*bi->on
            && (bi->oldval != *bi->val || refresh))
    {
        x = bi->x - SHORT(bi->p->leftoffset);
        y = bi->y - SHORT(bi->p->topoffset);
        w = SHORT(bi->p->width);
        h = SHORT(bi->p->height);

        if (y - ST_Y < 0)
            I_Error("updateBinIcon: y - ST_Y < 0");

        if (*bi->val)
            V_DrawPatch(bi->x, bi->y, FG, bi->p);
        else
            V_CopyRect(x, y-ST_Y, BG, w, h, x, y, FG);

        bi->oldval = *bi->val;
    }

}

